Kim Zolciak Bares Twin Baby Bump in Tiny Bikini

September 17, 2013 06:29:03 GMT

In a black-and-white bikini, the 'Real Housewives of Atlanta' star posts a pic of her growing belly on Instagram.

After announcing last month that she's expecting twins with her NFL player hubby Kroy Biermann, "The Real Housewives of Atlanta" star Kim Zolciak proudly displayed on her Instagram her growing double baby bump. Wearing a white lace-trimmed black two-piece bikini, the 35-year-old reality TV star took a selfie just before hitting the pool.

"Going swimming with the kiddos," the mom-to-be captioned the photo. "This pool makes me feel so much lighter! This belly #twins #excited #blessed #nofilter." Her latest Instagram upload shows a belly that has grown immensely since her late July gym pic where she wrote, "You asked for it ... here is my baby bump this morning!!" to caption her snapshot in a pulled-up black top exposing her tummy.

The Bravo TV star has always been proud of her fifth pregnancy, announcing it back on the season finale of her own show "Don't Be Tardy...", after taking more than a dozen home pregnancy tests that all turned out to be positive. "Kroy, we have not one negative test," she told the Atlanta Falcons defensive end back in June.

When she does finally give birth to her twins, Zolciak will be adding two more children to their current brood of four. Zolciak and Biermann have two sons together, 2-year-old KJ and 13-month-old Kash, and also two daughters from Zolciak's previous relationships who were already adopted by Biermann, 16-year-old Brielle and 12-year-old Ariana.